INDEX. 



9G7 



Phahenopsis Schilleriana, clinging roots, i. 

 754. 



pollination, ii. 227. 



Phalaris arundinacea, protection of stomata 

 from moisture, i. 294. 



weather-cock leaves, i. 427. 



Phallus, shrivelling through loss of water, i. 



216. 



Phallus caninus, sphere-crystals, i. 457. 

 Phallus impudicus, ii. 691. 



spore-dispersal, ii. 827. 

 Phanerogamia, absence of fossil connecting 



links with lower groups, ii. 613. 



alternation of generations, ii. 478. 



analogies with Rhizocarpeao and Sela- 



ginelleaa in female reproductive organs, 

 ii. 69. 



aquatic, mode of attachment, i. 77. 



corrosive power of roots, experimental 



illustration, i. 258. 



discussion of true nature of partheno- 



genesis, ii. 467. 



embryo differentiation, ii. 450. 



fertilized in the air, ii. 71. 



general characters, ii. 717. 



homologies of reproductive organs, ii. 717. 



mechanical action of roots, i. 265. 



number and grouping in Genera Plant- 



arum of B. and H., ii. 604. 



pollen and water, ii. 106. 



pollen-sac arrangement, ii. 89. 



saprophytic, in meadows, i. 112. 



sub-phylla, ii. 719. 

 Phanerogamic ovaries, ii. 77. 

 Phaseolus, leaf movements, i. 339. 

 Phaseolus vulgaris, nutation, i. 683. 

 Philadelphus, separation-layer, i. 361. 

 Phillyrea, pollination, ii. 138. 

 Philodendron, leaves cover air-roots, i. 225. 

 Philodendron bipinnatitidum stem, ii. 745. 

 Philodendron imbe, i. 365 ; ii. 744. 

 Philodendron Lindenii, root-hairs, i. 224. 

 Philodendron pertusum, i. 365; ii. 744. 



aerial roots, i. 366. 



Philosophia Botanica, of Linnaeus, definition 



of varieties, ii. 514. 

 Phleum, pollination, ii. 142. 

 Phlomis, hairiness, i. 317. 

 Phlox, honey protection, ii. 241. 



protection of pollen from wet, ii. 111. 

 Phosnix dactylifera, absorbent end of coty 



ledon, i. 600. 



germination, i. 607. 



mechanical tissue arrangement, i. 729. 



vitality of spermatoplasm, ii. 96. 



Phosphorescence and light of Fungi, i. 503. 



of sea, caused by Dinoflagellata, ii. 625. 

 Phosphoric acid, ferment action, i. 465. 

 Phosphorus, in ash of plants, i. 66. 



necessary for nitrogen compounds, i. 67. 



Phragmites eornmunis, ash constituents, i 

 68. 



mechanical tissue arrangement, i. 731 



spreading of, ii. 798. 



"Phrygana", of Theophrastus, i.e. semi 



shrubs, i. 444. 

 Phrygian form, produced by animals, i. 44 

 Phycocyanin, pigment of Cyanophyceae, ii 



621. 

 Phycoerythrin, i. 460. 



fluorescence, i. 379, 390. 



function, i. 390. 

 Phycomycetes, characters, ii. 668. 

 Phycophsein, pigment of Phaeophycea;, i 



B6L 



Phygelius, protogynous, ii. 311. 

 Phygelius capensis, flower, ii. 181. 



flowers and autogamy, ii. 384. 



Phyllanthus, phyllocladous plants, i. 334. 

 Phyllanthus cyclanthera, anthers, ii. 90. 

 Phyllanthus speciosus, i. 335. 

 Phyllobium dimorphum, life-history, u. 600 

 Phylloclades, in Chenopodiaceae, ii. 749. 



leaf-branches, i. 333. 



of Colletia, &c., i. 334. 

 Phyllode, nature of, i. 335. 

 _ of Acacia, i. 637. 



hyllodes, distribution of stomata on, 1. 281. 

 hylloglossuni, general structure, ii. 715. 

 hyllosiphon arisari, life-cycle, ii. 643. 

 hyllostachys bambusoides, protection of 



stomata from moisture, i. 294. 

 'hyllotaxis, and shape of leaves, i. 408. 



determination of, i. 4o3. 



of stamens, ii. 85. 



plan of whorled, i. 397. 



plans of spiral, i. 400. 



various series, i. 404. 

 ^hylocladia, luminosity, i. 388. 

 'hylogenetic tree, ii. 620. 



Phylogeny, of plants, ii. 607. 

 'hysalis, corolla and autogamy, ii. 366. 



guides to honey, ii. 



protection of pollen, ii. 118. 



Physalia Alkekengi, calyx and fruit, ii. 434. 

 red pigment, i. 461. 



'hyscia ciliaris, apothecium, ii. 681. 



'hyscia parietina, Foliose Lichen, ii. 691 



'hysianthus albens. See Araujia albena. 



'hysocytium, life-cycle, U. 636. 

 Phyteuma, nectary concealment, ii. 181. 



opening of flower, ii. 211. 



storing of pollen on style, ii. 359. 

 Phyteuma orbiculare, autogamy, ii. 362. 



bud-galls of Cecidomyia phyteumatis, 



ii. 544. 



Phyteuma spicatum, autogamy, ii. 362. 

 Phytolaca decandra, seed and embryo, ii. 



422. 

 Phytophthora omnivora, on seedlings, ii. 



670. 

 Phytoptus and fasciations in Ash, ii. 549. 



and formation of double flowers, ii. 459. 

 Pigment, chlorophyll-protecting, i. 392. 



of Florideffi, i. 388. 

 Pigments, fluorescing, i. 379. 



from bacterial activity, i. 506. 



of plants, i. 460. 



Pilacracese, distinctive features, ii. 687. 

 Pilea microphylla, ejection of pollen, ii. 137. 

 Pileus, of Agarics, ii. 491, 689. 



of Hymenomycetes, ii. 688. 



Pilobolus cristallinus, dispersal of spores, ii. 

 825. 



Pilostyles, distribution, i. 204. 



Pilostyles Haussknechtii, myceliam-like tis- 

 sue in host, i. 200. 



Pilularia, leaves and sporocarps, U. 711. 



Pimpernel See Anagallis. 



Pimpinella magna, anthocyanin, i. 522. 



scent, ii. 202. 



Pimpinella saxifraga, periodically pendulous 

 umbels, i. 530. 



Pine. See Pinus. 



Pine-apple. See Ananassa tativa. 



Pine-cone, phyllotaxis, i. 402. 



Pinguicula, autogamy, ii. 356. 



capturing apparatus, i. 137. 



habitat, i. 140. 



nectary, ii. 178. 



number of species, &c., i. 140. 

 Pinguicula alpina, leaf section, i. 137. 

 Pinguicula vulgaris, i. 141; capsule in dry 



and wet weather, ii. 448. 



stamen, i. 91. 

 Pink. See Dianthus. 

 Pinus, ii. 721. 



and resistance to cold, ii. 489. 



and Witches' Broom, ii. 527. 



branch, section, i. 22. 



cone protection, ii. 442. 



egg-cells, ii. 419. 



green cotyledons, i. 622. 



monoecious, ii. 297. 



mutilation by ruminants, ii. 515. 



mycorhiza Fungus, ii. 678. 



ovulif erous and bract scale*, ii. 440. 



protection of ovules, ii. 72. 



specific value of leaf anatomy, Ii. 665. 



stomata on leaves, i. 280. 



subdivision, ii. 725. 

 Pinus Cembra, ii. 727. 

 - - age, i. 722. 



cold resistance, i. 543. 



inus Cembra, dimensions, L 722. 



pollen-grains in snow-dust, i. 38. 



protective resin of cones, 



seed-coat, ii. 43y. 



Pinus excelsa, cold resistance, i. M3. 



Pinus Halepensis and cold, i. 543. 



Pinus humilis, habit, habitat and snow, L 



548. 

 Tyrol, i. 649. 



inus Pinea, and cold. i. 543. 

 seed-coat, ii. 439. 



>inus Pumilio, female flower, ii. 722. 



male and female cones. U. 144 



pollen-grains. U. 96. 



pollen storing and dispersion. U. 14& 



Pinus serotina, branch and cone, ii. 443. 



'inus Strobus and Peridermium .Btrobi. ii 

 527. 



iinu sylvestris, age, L 722. 

 andOoh 



:.sions, L 722. 



ovule, structure, ii. 418. 



OTuliferous scale, U. 441, 721. 



seed protection and dispersal, Ii. 449. 



'iper, root-forming leaves, L 772. 



roots from leaf-cuttings, L 88. 

 Piperaoew, cause of white spots on leave*, L 



285. 



collective fruits in, it 436. 

 Piper Betle, collective fruit, ii. 437. 

 Pisonia and galls of Pemphigus cornlcularius, 



ii. 535. 



Pisonia aculeata, sticky fruit, ii. 870. 

 Pistada, pollination, ii. 138. 

 Pistada Lentiscus and Witches' Broom, U. 



527. 



>i. 745. 



Pistia, adaptation to change of habitat. L 76. 

 Piston-apparatus, pollen distribution, ii. 260. 

 Pisum. fruit protection, U. 446. 



keel movements and pollen brush, ii. 262. 

 Pitcher of Frullania, ii. 698. 

 Pitcher-plants, digestion of prey, i. 124 

 Pitchers, L 127. 



alluring, *c., contrivances, i. 134. 

 Pitfalls, advantage of, i. 158. 



structure, Ac., in Genliaea, L 124. 



various shapes, L 130. 

 Pith-galls, appearance, ii. 537. 



Pita, bordered, of tracheides and trachem, L 

 276. 



structure of, I. 46. 



Pitted vessel, i. 469. 

 Placenta of ovary, i. 644; Ii. 8L 

 Plagiothecium nekeroideum, 



cells, i. 85. 



Plains, type of community, Ii. 888, 892. 

 Plan of whorled phyllotaxis, i. 397. 

 Plane-tree. See Plataniu. 

 Plant, adaptation, L 567. 



biennial, i. 658. 



functions of roots, i. 751. 



roots, i. 760. 



- cycle of development and climatology, i. 



division of labour, i. 367. 



fanciful comparisons of Nature-philoso- 



phers, i. 12. 



- monoecious, ii. 298. 



- spines and prickles, i. 433. 



- typical, Goethe's, L 12. 

 PlantaglnaceiB, ii. 771. 

 Plantago, pollination, U. 135. 

 -protection of pollen, ii. 123. 

 _ieed^ement,L615. 

 Plantago erotica, dispersal, ii. 849. 

 Plantago major and animals, L 431 

 Plantago media, *c., eates and rain conduc- 

 tion, i. 96. 



spikes and radiation. I. 530. 



Plantago recurrata, spikes and nocturnal 



radiation, 1. 530. 



Plantain. Bee M i JW^W* 

 Plant-body, nature of, 1. BW. 



simplest form, L L 



Plant communities, ii. 886. 

 _ -types of, IL 887. 



